AT89C5131A-S3SUM Atmel, AT89C5131A-S3SUM Datasheet - Page 67
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AT89C5131A-S3SUM
Manufacturer Part Number
AT89C5131A-S3SUM
Description
IC 8051 MCU FLASH 32K USB 52PLCC
Manufacturer
Atmel
Series
AT89C513xr
Datasheet
1.AT89C5130A-PUTUM.pdf
(188 pages)
Specifications of AT89C5131A-S3SUM
Core Processor
C52X2
Core Size
8-Bit
Speed
48MHz
Connectivity
I²C, SPI, UART/USART, USB
Peripherals
LED, POR, PWM, WDT
Number Of I /o
34
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
1.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
52-PLCC
Processor Series
AT89x
Core
8051
Data Bus Width
8 bit
Data Ram Size
1.25 KB
Interface Type
2-Wire, EUART, SPI, USB
Maximum Clock Frequency
48 MHz
Number Of Programmable I/os
34
Number Of Timers
16 bit
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
AT89STK-05
Minimum Operating Temperature
- 40 C
Package
52PLCC
Device Core
8051
Family Name
89C
Maximum Speed
48 MHz
For Use With
AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCUAT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-05 - KIT STARTER FOR AT89C5131
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT89C5131A-S3SUM
Manufacturer:
ATMEL
Quantity:
46
Figure 14-5. PCA High-speed Output Mode
14.4
4337K–USB–04/08
Pulse Width Modulator Mode
CCAPnH
Write to
1
CCAPnL
Write to
0
Before enabling ECOM bit, CCAPnL and CCAPnH should be set with a non zero value, other-
wise an unwanted match could happen.
Once ECOM set, writing CCAPnL will clear ECOM so that an unwanted match doesn’t occur
while modifying the compare value. Writing to CCAPnH will set ECOM. For this reason, user
software should write CCAPnL first, and then CCAPnH. Of course, the ECOM bit can still be
controlled by accessing to CCAPMn register.
All of the PCA modules can be used as PWM outputs. Figure 14-6 shows the PWM function.
The frequency of the output depends on the source for the PCA timer. All of the modules will
have the same frequency of output because they all share the PCA timer. The duty cycle of each
module is independently variable using the module's capture register CCAPLn. When the value
of the PCA CL SFR is less than the value in the module's CCAPLn SFR the output will be low,
when it is equal to or greater than the output will be high. When CL overflows from FF to 00,
CCAPLn is reloaded with the value in CCAPHn. This allows updating the PWM without glitches.
The PWM and ECOM bits in the module's CCAPMn register must be set to enable the PWM
mode.
Reset
Enable
PCA counter/timer
CCAPnH
CH
16-bit Comparator
CF
ECOMn
CCAPnL
CR
CL
CAPPn
Match
CAPNn MATn TOGn PWMn ECCFn
CCF4 CCF3 CCF2 CCF1 CCF0
AT89C5130A/31A-M
CCON
0xD8
CCAPMn, n = 0 to 4
0xDA to 0xDE
PCA IT
CEXn
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